There are lesson plans, interactive activities and other online resources. This is a merger of to platforms for learning and has over 55,000 lessons and other resources.

This website has so many resources for all grades and areas of learning. They're not just broken down into math, science, and social studies. Under each subject area the resources are broken down further.

This site has tons of Common Core lessons and some of them are not just for one subject.

This is the official website of the Supreme Court of the United States.

This is great for statistics and really useful for a sociology class.

Great resource for common core standards and connected lesson plans.